Help co-authoring

If anyone wants to co-author to fix this plugin, because WP change the way they deal with post states and the way the functions are called, making all the code in this plugin cause crashes when they are called from within the customiser.

e.g. I’m writing out echo statements in display_post_states and they don’t work within the context of the customiser now and cause errors. Don’t know how to fix this mess now. Need help.